<?php
//php防护模块
function customError($errno, $errstr, $errfile, $errline)
{
    echo "<b>Error number:</b> [$errno],error on line $errline in $errfile<br />";
    die();
}
set_error_handler("customError",E_ERROR);
$getfilter="'|(and|or)\\b.+?(>|<|=|in|like)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
$postfilter="\\b(and|or)\\b.{1,6}?(=|>|<|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
$cookiefilter="\\b(and|or)\\b.{1,6}?(=|>|<|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
function StopAttack($StrFiltKey,$StrFiltValue,$ArrFiltReq){
	return false;
    if(is_array($StrFiltValue))
    {
        $StrFiltValue=implode($StrFiltValue);
    }
    if (preg_match("/".$ArrFiltReq."/is",$StrFiltValue)==1){
        slog("<br><br>操作IP: ".$_SERVER["REMOTE_ADDR"]."<br>操作时间: ".strftime("%Y-%m-%d %H:%M:%S")."<br>操作页面:".$_SERVER["PHP_SELF"]."<br>提交方式: ".$_SERVER["REQUEST_METHOD"]."<br>提交参数: ".$StrFiltKey."<br>提交数据: ".$StrFiltValue);
        print "notice:Illegal operation!";
        exit();
    }
}
//$ArrPGC=array_merge($_GET,$_POST,$_COOKIE);
foreach($_GET as $key=>$value){
    StopAttack($key,$value,$getfilter);
}
foreach($_POST as $key=>$value){
    StopAttack($key,$value,$postfilter);
}
foreach($_COOKIE as $key=>$value){
    StopAttack($key,$value,$cookiefilter);
}
function slog($logs)
{
    $toppath=$_SERVER["DOCUMENT_ROOT"]."/protect_log.txt";
    $Ts=fopen($toppath,"a+");
    fputs($Ts,$logs."\r\n");
    fclose($Ts);
}
?>